Answer:
$621
Explanation:
-Profit is the net amount after deducting the total expenses from the sales revenue realized.
-Wally's expenses are:
![E=100+200+500\\\\=800](https://img.qammunity.org/2021/formulas/mathematics/high-school/i5o38tneeog0bpfpca8s9sb1tp9q31pwxk.png)
-Wally's sales revenue is:
![R=sp* w, sp-selling \ price, w= bushels\\\\=700* 2.03\\\\=1421](https://img.qammunity.org/2021/formulas/mathematics/high-school/tozk9h1lcozpnv3jfpjh4aybouurjjg8mt.png)
The profit made is therefore calculated as:
![P=R-E\\\\=1421-800\\\\=621](https://img.qammunity.org/2021/formulas/mathematics/high-school/35pd55t0hu61vukg16onlinl49a4byku3g.png)
Hence, Wally's profit last year was $621